1postfix_map_selinux(8) SELinux Policy postfix_map postfix_map_selinux(8)
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6 postfix_map_selinux - Security Enhanced Linux Policy for the post‐
7 fix_map processes
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10 Security-Enhanced Linux secures the postfix_map processes via flexible
11 mandatory access control.
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13 The postfix_map processes execute with the postfix_map_t SELinux type.
14 You can check if you have these processes running by executing the ps
15 command with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep postfix_map_t
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24 The postfix_map_t SELinux type can be entered via the post‐
25 fix_map_exec_t file type.
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27 The default entrypoint paths for the postfix_map_t domain are the fol‐
28 lowing:
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30 /usr/sbin/postmap
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33 SELinux defines process types (domains) for each process running on the
34 system
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36 You can see the context of a process using the -Z option to ps
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38 Policy governs the access confined processes have to files. SELinux
39 postfix_map policy is very flexible allowing users to setup their post‐
40 fix_map processes in as secure a method as possible.
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42 The following process types are defined for postfix_map:
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44 postfix_map_t
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46 Note: semanage permissive -a postfix_map_t can be used to make the
47 process type postfix_map_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
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53 SELinux policy is customizable based on least access required. post‐
54 fix_map policy is extremely flexible and has several booleans that al‐
55 low you to manipulate the policy and run postfix_map with the tightest
56 access possible.
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60 If you want to allow all domains to execute in fips_mode, you must turn
61 on the fips_mode boolean. Enabled by default.
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63 setsebool -P fips_mode 1
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68 The SELinux process type postfix_map_t can manage files labeled with
69 the following file types. The paths listed are the default paths for
70 these file types. Note the processes UID still need to have DAC per‐
71 missions.
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73 krb5_host_rcache_t
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75 /var/tmp/krb5_0.rcache2
76 /var/cache/krb5rcache(/.*)?
77 /var/tmp/nfs_0
78 /var/tmp/DNS_25
79 /var/tmp/host_0
80 /var/tmp/imap_0
81 /var/tmp/HTTP_23
82 /var/tmp/HTTP_48
83 /var/tmp/ldap_55
84 /var/tmp/ldap_487
85 /var/tmp/ldapmap1_0
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87 mailman_data_t
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89 /etc/mailman.*
90 /var/lib/mailman(/.*)?
91 /var/spool/mailman.*
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93 postfix_etc_t
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95 /etc/postfix.*
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97 postfix_map_tmp_t
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102 SELinux requires files to have an extended attribute to define the file
103 type.
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105 You can see the context of a file using the -Z option to ls
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107 Policy governs the access confined processes have to these files.
108 SELinux postfix_map policy is very flexible allowing users to setup
109 their postfix_map processes in as secure a method as possible.
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111 STANDARD FILE CONTEXT
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113 SELinux defines the file context types for the postfix_map, if you
114 wanted to store files with these types in a diffent paths, you need to
115 execute the semanage command to specify alternate labeling and then use
116 restorecon to put the labels on disk.
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118 semanage fcontext -a -t postfix_map_tmp_t '/srv/mypostfix_map_con‐
119 tent(/.*)?'
120 restorecon -R -v /srv/mypostfix_map_content
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122 Note: SELinux often uses regular expressions to specify labels that
123 match multiple files.
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125 The following file types are defined for postfix_map:
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129 postfix_map_exec_t
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131 - Set files with the postfix_map_exec_t type, if you want to transition
132 an executable to the postfix_map_t domain.
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136 postfix_map_tmp_t
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138 - Set files with the postfix_map_tmp_t type, if you want to store post‐
139 fix map temporary files in the /tmp directories.
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143 Note: File context can be temporarily modified with the chcon command.
144 If you want to permanently change the file context you need to use the
145 semanage fcontext command. This will modify the SELinux labeling data‐
146 base. You will need to use restorecon to apply the labels.
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150 semanage fcontext can also be used to manipulate default file context
151 mappings.
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153 semanage permissive can also be used to manipulate whether or not a
154 process type is permissive.
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156 semanage module can also be used to enable/disable/install/remove pol‐
157 icy modules.
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159 semanage boolean can also be used to manipulate the booleans
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162 system-config-selinux is a GUI tool available to customize SELinux pol‐
163 icy settings.
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167 This manual page was auto-generated using sepolicy manpage .
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171 selinux(8), postfix_map(8), semanage(8), restorecon(8), chcon(1), se‐
172 policy(8), setsebool(8)
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176postfix_map 21-11-19 postfix_map_selinux(8)